package com.lcz.web;


import com.lcz.service.StudentService;
import com.lcz.service.impl.StudentServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;


@WebServlet(urlPatterns = "/Educational/student/DeleteServlet")
public class DeleteStuServlet extends HttpServlet {
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //1.接收参数
        req.setCharacterEncoding("utf-8");
        String stuid = req.getParameter("sid");

        //2.调用Service
        StudentService studentService = new StudentServiceImpl();
        int ans = studentService.delete(stuid);

        //3.判断是否删除成功
        resp.setContentType("text/html;charset=utf-8");
        PrintWriter writer = resp.getWriter();

        if(ans>0){
            writer.println("<script>alert('删除成功');location.href='/Educational/student/studentServlet'</script>");
        }else{
            writer.println("<script>alert('删除失败');location.href='/Educational/student/studentServlet'</script>");
        }
    }
}
